Explosive composition



Patented @ct. 20, 1931 cares stares PATENT orrios WILLIAM LINDSAY MGIPHEBSON, OF THE UNITED STATES ARMY, DOVER, NEW JERSEY ExrLosIvn comosITIon No Drawing.

Application filed April 16, 1929. Serial No. 355,652.

(GRANTED UNDER THE ACT OF MARCH 3, 1888, AS AMENDED APRIL 30, 1928 370 0. G. 757)- The invention described hereinmay be manufactured and used by or for the Government for governmental purposes, without the payment to me of any royaltythereon.

The subject matter of this invention 1s an explosive composition.

The choice of ingredients for explosive compositions depends upon their favorable behavior, the availability of supply and the cost of production. At the present time the development of certain domestic industries has produced as a by-product a large supply of furfural from which can be produced derivatives of furane. While this supply of i'urfural provides a ready source from which intro derivatives of furane may be secured, itis not a sole source 'of such supply and this invention is intended to cover such derivati ves from whatever sources obtained.

I have discovered that the nitro derivatives of furane are explosive, acting similar to their analogues in the benzene series. Dinitro-furane, for example, explodes on impact of a 2-kilogram weight. This property is also characteristic of the substance when combined with other ingredients. The following are examples of such explosive mixtures.

1. N itro compounds of furane mixed with inorganic salts, such as the nitrates and chlorates of ammonium, potassium and sodium.

2. N itro compounds of furane mixed with alkyl and aromatic compounds, such as nitroglycerine, glycol dinitrate, diethylene glycol dinitrate, nitro-cellulose, nitro starch, the nitro sugars, the nitro benzenes, thylenes, the nitro furanes, the nitro phenols, the nitro cresols, etc.

3. Nitro compounds of furane mixed with nitro-cellulose, either with'or without other ingredients. In this case the former compounds act as plasticizers in addition to increasing the potential of the mixture.

tion of furoic acid and upon recrystallization gives a melting point of 101.7 C. indicating high had the following properties in comparison with TN T.

Dinitro-Iurane TNT EFtIDlOSlOH tempera- 275C 438 C.

ure. Drop test, 2 k. g. 12 inches 15 inches.

hammer.

degree of purity. This" material Sensitivity to det- 0.19 grams mercury 0.24 grams mercury onation. iulminate. fulminate. Brisance 29.8 grams sand 33.0.grams sand crushedinsand test. prushed in sand est. Loading density"--. 1.48 1.35.

I claim:

1 A new explosive embodying nitro derivatives of furane.

. 2. A new explosive embodying dinitro furane.

3, A nitrocellulose smokeless powder, the grams of which are coated with a nitro derivative of furane.

4. A plastic composition including a nitrocellulose explosive colloided with a nitro derivative of furane.

5. A composition including an explosive and an explosive nitro derivative of furane. 6. An explosive composition including an inert ingredient and an explosive nitro derivative of furane.

WILLIAM LINDSAY MGPHERSON.

the nitro naph 4. Nitro compounds of furane mixed with I inert materials, such as wood flour, starch,,

cereal flours, kieselguhr. etc.

The nitro compounds of furane can alsobe used as a coating for sporting and militarysmokeless powders for the purpose of obtaining better ballistics.

Dinitro-furane may be prepared by nitra- 

